Changes made since CMake 3.2 include the following.
- The Makefile Generators now add .DELETE_ON_ERROR to the
makefiles that contain the actual build rules for files on disk.
This tells GNU make to remove rule outputs when their recipe
modifies an output but fails.
- The Visual Studio Generators learned to support .xaml
source files and automatically associate them with corresponding
.h and .cpp sources.
- A new experimental Green Hills MULTI generator was
added on Windows. Green Hills MULTI is an IDE for embedded
real-time systems.
- The add_dependencies() command learned to allow dependencies
to be added to interface libraries.
Dependencies added to an interface library are followed transitively
in its place since the target itself does not build.
- The execute_process() command learned to support specifying
the same file for OUTPUT_FILE and ERROR_FILE.
- The file(GLOB) and file(GLOB_RECURSE) commands
learned a new LIST_DIRECTORIES <bool> option to specify whether
the glob result should include directories.
- The find_library(), find_path(), and find_file()
commands now search in installation prefixes derived from the PATH
environment variable.
- The if() command learned a new IN_LIST operator that
evaluates to true if a given element is contained in a named list.
- The install(EXPORT) and export() commands
learned to export targets that populate the INTERFACE_SOURCES
target property.
- The install(TARGETS) command learned to support
generator expressions in the DESTINATION value.
- The CheckFortranCompilerFlag module was introduced
to check Fortran compiler flags, much like the
CheckCCompilerFlag module already does for C.
- The ExternalData module learned a new
ExternalData_NO_SYMLINKS option to disable use of
symbolic links to populate the real data files and use copies
instead.
- The ExternalData module learned a new RECURSE:
option in DATA{} references specifying directories.
This allows an entire directory tree of associated files
to be matched.
- The ExternalData module learned a new URL template
placeholder %(algo:<key>) to allow custom mapping from
algorithm name to URL component through configuration of new
ExternalData_URL_ALGO_<algo>_<key> variables.
This allows more flexibility in remote URLs.
- The ExternalProject module learned to replace tokens
like <BINARY_DIR> in the BYPRODUCTS of each step.
- The ExternalProject module APIs learned to support
generator expressions
when using LOG_* options and in CMake initial cache options.
- The FindBoost module now tracks the directories containing
libraries separately for RELEASE and DEBUG configurations.
- The FindCUDA module now defaults to using the static
CUDA runtime library if it is available. A new
CUDA_USE_STATIC_CUDA_RUNTIME option is offered to control
this behavior.
- The FindMatlab module was completely rewritten. It learned
about versions and components and to find Matlab in a more precise and
multiplatform way. The module now offers APIs to create mex extensions,
documentation, and unit tests.
- The FindPackageHandleStandardArgs module
FIND_PACKAGE_HANDLE_STANDARD_ARGS function now
always populates both the <PackageName>_FOUND
and <UPPERCASE_NAME>_FOUND variables (the latter
for backwards compatibility). The FOUND_VAR
option is now ignored except to enforce its allowed
values.
- The InstallRequiredSystemLibraries module learned a new
CMAKE_INSTALL_SYSTEM_RUNTIME_COMPONENT option to specify the
installation component.
- A new COMPILE_LANGUAGE generator expression was introduced to
allow specification of compile options for target files based on the
LANGUAGE of each source file. Due to limitations of the
underlying native build tools, this feature has varying support across
generators. See the cmake-generator-expressions(7) manual
for details.
- The Compile Features functionality
is now aware of features supported by GNU compilers on Windows, versions
4.4 through 5.0.
- The cmake(1) -E tar command learned a new
--format<format> option to specify the archive format to
be written.
- On OS X, CMake learned to create XCTest bundles to test Frameworks
and App Bundles within Xcode. The FindXCTest module
provides convenience functions to handle XCTEST bundles.
On OS X the cmake-gui(1) no longer has the
Install For Command Line Use menu item. Instead there
is a How to Install For Command Line Use menu item
that shows an informational dialog box explaining how to
make the command line tools available. For example:
/Applications/CMake.app/Contents/bin/cmake-gui --install
The ctest_build() and build_command() commands
no longer tell make tools to ignore errors with the -i option.
Previously this was done for Makefile Generators but not others.
See policy CMP0061.
The Visual Studio 10 2010 generator no longer checks
for running VS IDEs with the project open or asks them to reload.
This was originally done for VS 10 because it had been done for
VS 7 through 9 to avoid prompting for every project in a solution.
Since VS >= 10 allow the whole solution to reload at once they
do not need CMake to help them.
The Visual Studio 7 generator (.NET 2002) is now
deprecated and will be removed in a future version of CMake.
The Visual Studio 6 generator is now deprecated
and will be removed in a future version of CMake.
The find_package() command no longer considers project
build trees recently configured in a cmake-gui(1).
This was previously done only on Windows and is now never done.
The NO_CMAKE_BUILDS_PATH option is now ignored if given
and effectively always on.
Projects may populate the User Package Registry to aid
users building multiple dependent projects one after another.
The add_definitions() command no longer causes a
DEFINITIONS directory property to be populated. See policy
CMP0059.
With Visual Studio 7, 8, and 9 generators the value of the $(OutDir)
placeholder no longer evaluates to the configuration name. Projects
should use $(ConfigurationName) for that instead.
Using the output of export() with the install(FILES)
command is no longer allowed. See policy CMP0062 for details.
- The Ninja generator now requires that calls to the
add_custom_command() and add_custom_target()
commands use the BYPRODUCTS option to explicitly specify any
files generated by the custom commands that are not listed as
outputs (perhaps because their timestamps are allowed to be older
than the inputs). See policy CMP0058.
- Build-time progress output of Makefile Generators has been improved.
It no longer mixes progress and build rule messages during parallel builds.
The link rule messages now have progress and are displayed as bold green
instead of bold red (since red is often associated with an error message).
- The CMAKE_CFG_INTDIR variable value for Visual Studio
7, 8, and 9 is now $(ConfigurationName) instead of $(OutDir).
This should have no effect on the intended use cases of the variable.
- Linking to library files by a full path in an implicit linker search
directory (e.g. /usr/lib/libfoo.a) no longer asks the linker to
search for the library (e.g. -lfoo) and now links by full path.
See policy CMP0060.